Surprise Celebrity Appearances at Children's Hospital of Orange County Prom

Video from Children's Hospital of Orange County

Prom... A rite of passage in every child's life. A moment in time to wear a glamorous dress, slide into the perfect tuxedo, and saunter off to meet your closest friends. A night that will never be forgotten.

On the first official weekend of summer, patients at Children’s Hospital of Orange County zipped up their dresses, tied their new Ryan Seacrest Distinction bowties, and freshened up with Polished for Men before heading “Around the World in One Night” for their annual Oncology Prom.

An unexpected visit from celebrities, Selena Gomez and Jack Black, left patients gushing and cell phones overflowing with hundreds of selfies. Fans even received the perfect advice from self-declared dance coach for the evening, Jack Black: "I just wanted to make sure you guys had the latest dance moves. I wanted to teach you a couple because that is the most important thing at a prom, is that you have the latest."

Other stars in attendance included Grey's Anatomy cast members Sarah Drew, James Pickens Jr., Caterina Scorsone and Kevin McKidd.

The annual prom supports teenagers and young adults going through cancer treatment, as well as many survivors, post-treatment. Thank you to each and every guest and supporter who made this evening so special! We cannot wait for next year!